Ohmigod. Did you see that halter top she had at the Super Bowl halftime show this year? What about that video where she dresses up like a Catholic school girl?

Now, she's bringing that image to NASCAR. No word yet on her outfit.

Spears' official title Saturday will be grand marshal, a position that has been generally reserved in the past for more serious (read: old) figures.

Pepsi executives.

Republican politicians like Ronald Reagan, George Bush (the elder and younger) and Florida Gov. Jeb Bush.

Britney is, like, totally way cooler than them.

Though there are some big names on the list of grand marshals for NASCAR's biggest summer race, it's a safe bet that none of them have had two records go platinum.

It's also a safe bet that most of them do not own any of her CDs. But their kids or grandkids probably know some of her songs by heart.

And that will go a long way as NASCAR tries to expand its already growing audience by targeting a younger and broader fan base, said motorsports marketing analyst Tom Cotter.

(WARNING TO TEENAGE GIRLS: here comes the boring business stuff, more Britney items to come later.)

"This is an attempt to build a cradle to the grave marketing campaign. Whatever it takes to get young people to the race track," Cotter said.

But it's also a stab at diversity, at least along demographic lines.

"It's the most visible attempt I've seen of NASCAR breaking away from its traditional country roots," Cotter said.

Spears' role as grand marshal is about more than just fan base expansion. In a sport that lives and dies by sponsorship, her role is also about cross-promotion.

Pepsi, the race's official sponsor, gets to choose the grand marshal. Britney already works for Pepsi, selling the soft drink. So, for that matter, does Jeff Gordon, the racer and Pepsi pitchman who always takes a conspicuous swig of his sponsor's drink after winning a race.